Does all the card value have to be used in 1 transaction?
No, you can use some or all of the value on the card. If any money is left, it will be held for you on the card for spending later. Or use the money on the card to put toward a higher price item by paying the difference.
Refer to:
http://www.tesco.com/giftcard/questions.asp
for details and conditions of this card.
Please note; the picture above is for illustrative purposes only.
